Academic Calendars: Undergraduate Fall 2025

OU Online
Undergraduate
Fall 2025
Academic Calendars

Online Fall A: August 25 to October 17 (8 Weeks)

Event/Activity

Date

Application DeadlineAugust 11
Classes StartAugust 25
Last day to add without the instructor’s permissionAugust 27
Last day to drop & receive 100% refundAugust 29
Labor Day Holiday: No Live SessionsSeptember 1
Classes EndOctober 17
Grades DueOctober 21

Online Fall B: October 20 to December 12 (8 Weeks)

Event/Activity

Date

Application DeadlineOctober 6
Classes StartOctober 20
Last day to add without the instructor’s permissionOctober 22
Last day to drop & receive 100% refundOctober 24
Thanksgiving Holiday: No Live SessionsNovember 26 through 28
Classes EndDecember 12
Grades DueDecember 16